Question

State the opposite of the number.

$81$

Short answer

The opposite of the number is $-81$.

Step-by-step solution

Step-1 – Opposite of a number

Opposite of any real number can be obtained by multiplying it with $-1$. On the number line, opposite of any number be located on the opposite side at the same distance from the midpoint 0.

Step-2 – Example of opposite of a number

The opposite of any number is the same number with opposite sign.

For example, opposite of 3 is $-3$.

And the opposite of $-1$ is 1.

Step-3 – Find the opposite of the number

In order to find the opposite of the number, multiply it with $-1$.

So, the opposite of the given number is

$-1\left(81\right)=-81$

Thus, the opposite of the number is $-81$.